Disintegrating-cylinder.



J. DIXON. DISINTEGRATING CYLINDER.

APPLICATION FILED APR.6,1908.

Patented July 13, 1909.

will" use:

JOHN DIXON, OF PHILADELPHIA, PENNSYLVANIA.

DIS INTE GRATING-CYLINDER.

To all whom it may concern:

Be it known that I, JOHN DIXON, a citizen of the United States, residingat Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inDisintegrating-Cylinders, of which the following is a specification.

This invention relates to disinte rating cylinders, and more articularlyto cylinders for disintegrating 'brous substances, the object being toprovide very novel means for attaching the ribbon saw to the same, sothat it can be easily and quickly secured thereon without injuring thecylinder in any way, thereby overcoming the di'lficulties now existingwith cylinders of this character, as everytime a new ribbon saw isinserted, the cylinder is injured to a certain extent, and has to berefinished, and. in course of time the spiral groove in the periphery ofthe same has to be deepened to receive the ribbon saw.

A further object of my invention is to provide means for securing thesaw which can be readily attached to the ordinary cylinder now in usewithout changing the same in any manner.

Another object of my invention is to provide a ribbon saw with a beveledside. I accomplish this object by winding a flat wire in the ordinaryspiral groove of the cylinder, which is of such a size that it extendsup above the periphery of the same and forms a spiral groove to receivethe ribbon saw which is secured therein by swaging the wire, the wirebeing wound therein under tension and secured at its ends.

These objects are obtained by the novel arrangement and construction ofparts hereinafter fully described and shown in the accompanyingdrawings, in which:

Figure 1, is a longitudinal sectional view of the cylinder partly inelevation showing the manner of securing my ribbon saw in place. Fig. 2,is an end view of the cylinder. Fig. 3, is a detail section showing themanner of securing the ribbon saw between the wire by swaging the same.

In the drawings A, indicates a cylinder having a spiral groove in itsperiphery, in which is adapted to be wound a malleable fiat Wire B, thewidth of the wire being sufli- Specification of Letters Patent.

Application filed April 6, 1908.

Patented July 18, 1909.

Serial No. 25,321.

cient to allow it to extend above the periphery of the cylinder asuflicient distance to form a spiral groove. The ends of the wire aresecured to the respective ends of the cylinder by any suitable means,not shown, so that it will be securely locked in the groove. The ribbonsaw C, is then wound in the groove formed by the wire, one side of thesaw being provided with a beveled portion C over which the adjacent edgeof the wire B as shown at B, is adapted to be swaged, where by the wirewill be securely locked in positlon,

so that it cannot move in any way, the ends being secured in somesuitable manner. It oil. course, being understood that the ribbon saw iswound in the groove under great tension, so that it will lie flatly inthe same, the teeth of the saw projecting out a sui'licient distance soas to allow the teeth to pass through the fibrous substances to bedisintegrated. By this arrangement the cylinder is thoroughly protectedagainst foreign matter which gets mixed up in the fibrous substances tobe disintegrated and sometimes injures the cylinder so that it has to berefaced. When it is desired to replace a new ribbon saw, it is onlynecessary to release the ends of the wire so that it can be readilyunwound which will carry with it the ribbon saw, thereby saving a greatdeal of time and labor.

While I have shown and described the ribbon saw with a beveled portion,it of course is not necessary, as it can be secured therein without thesame, but by practical experience, I have found that the ribbon saw willbe held much tighter within the groove.

From the foregoing description it will be seen that I have providednovel means for securing the ribbon saw to a cylinder, so that it can bereadily taken oil and one which will protect the cylinder, therebyincreasing the life of the cylinder, and time and expense of having thecylinder regrooved and finished. Having thus described my invention whatI claim as new and desire to secure by Let ters Patent is :l

A disintegrating cylinder provided with a spirally grooved periphery, aribbon saw disposed spirally around said cylinder, and located betweenthe convolutions of the spiral groove, said saw having one side beveled,a malleable saw securing and groove forming Wire inserted in said spiralroove, and of a In testimony whereof I have signed my depth greater thanthe dept of the groove, name to this specification in the presence ofwhereby said wire forms a groove for the two subscribing witnesses.

saw, but securing the saw against the pe- JOHN DIXON. 5 riphery of thecylinder, and said wire swaged Witnesses:

down upon the beveled side of the ribbon It. II. KRENKEL,

saw locking the latter to the cylinder. C. E. POTTS.

